Rise in cancers 'caused by weight'

&gt;Rise in cancers &#x27;caused by weight&#x27;<p>&gt;The charity also found that excess weight now caused 6.3% of all cancer cases - up from 5.5% in 2011<p>&gt;Prof Mel Greaves, a cancer biologist at the Institute of Cancer Research, in London, said the study was an &quot;endorsement&quot; of the idea that many cancers were potentially preventable. But he said the idea that obesity itself or eating too little fibre &quot;causes&quot; cancer was &quot;somewhat simplistic&quot; and still needed to be explored further.<p>What a rollercoaster.

&gt; Across the UK, smoking remained by far the leading cause of preventable cancer, although it dropped from 19.4% in 2011 to 15.1%. Second was being overweight or obese . . .<p>Since obesity doesn&#x27;t just randomly happen but has causes, shouldn&#x27;t they say &quot;caused by&quot; the causes of obesity -- i.e. sugar, inactivity, etc?

Percentages are no good without NNTs. It does not mention that some cases are much harder to treat than others.<p>(NNT = number or treatments needed to treat or prevent one case of cancer)

What is the mechanism to correlate an incidence of cancer with being over weight versus another risk factor?

Good, less calories means less livestock means less transport and pollution. Virtuous cycle.

Funnily enough, lack of exercise, alcohol, meat can cause obesity. and not eating enough veg gives people fibre deficiency.<p>Also to note none of those causes of cancers are protein deficiency.

At the time, she was nearly 20 stone.<p>20 stone = 127 kg = 280 lbs

<i>and third was exposure to the Sun</i><p>That capitalised &quot;Sun&quot; will no doubt unintentionally amuse UK readers of the news...